16 CFR 23.4 - Misrepresentation as to gold content. | US Law | LII / Legal Information Institute [online]. 2017-02-14, [cit. 2018-04-16]. Dostupné online. Archivované 2017-02-14 z originálu.
16 CFR 23.4 - Misrepresentation as to gold content. | US Law | LII / Legal Information Institute [online]. 2017-02-14, [cit. 2018-04-16]. Dostupné online. Archivované 2017-02-14 z originálu.